200-301 · Question #1266
200-301 Question #1266: Real Exam Question with Answer & Explanation
The correct answer is A: They enable communication between the controller and the network device.. The southbound interface in SDN is the communication between the SDN controller at the middle control layer and the lower networking elements at the data layer. The data layer consists of the physical or virtual network switches and ports. The SDN controller takes the desired sta
Question
What describes the functionality of southbound APIs?
Options
- AThey enable communication between the controller and the network device.
- BThey communicate with the management plane.
- CThey use HTTP messages to communicate.
- DThey convey information from the controller to the SDN applications.
Explanation
The southbound interface in SDN is the communication between the SDN controller at the middle control layer and the lower networking elements at the data layer. The data layer consists of the physical or virtual network switches and ports. The SDN controller takes the desired state of the network and translates it into specific commands and configurations that are then pushed to the network devices over the southbound
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